Clamshell package



FIG. 1 is a perspective view of a clamshell package, in accordance with the present invention;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof, the right side is a mirror image;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a clamshell package, substantially as shown and described. 